If possible, it would be nice to see how some of these time are achieved. I live in DC and some of these look pretty optimistic. If you've found better ways to get around, I want to be able to go from pretty pictures to more efficient commuting!

This is a good idea! Technically it requires a bit more effort. Be aware that Mapnificent is not a trip planner and is partly guesstimating. But if it appears overly optimistic in some parts, an analysis is definitely important. Will do, but need to figure out right UI and implementation, may take some time.

Frequent bus routes are more useful then buses leaving once per hour. I know you assume "that you will time your journey in a way that you don’t have to wait for your first transport option" but that's not always realistic.

Maybe with coloured shading you could distinguish what is accessible on frequent networks (leaving at least once every 15 minutes) and what is accessible with less frequent service.

Please list all the different transit agencies that would need to be added. Please list available GTFS data for these agencies, if data is available. If data is not available, please write to the transit agency and ask them to publish GTFS data for developers to use free of charge.

Tricky! Mapnificent needs some CPU power and iPad is probably not able to handle it. I will work with the iPad Simulator in the coming week, but can’t guarantee that it will work on an actual one (don’t own one myself). I will report progress here.
Mapnificent currently works best in Chrome, Opera, Safari and Firefox (in roughly that order).

In order to add your city, the local transport provider needs to publish its public transport data in the GTFS format.

Please write your public transport agency and ask them to provide developers with GTFS data for free and under fair conditions. Point out the benefits they have when developers build cool applications like Mapnificent based on this data.
Please report progress and post any relevant links here. Thanks.

This idea is very, very hot for people trying to relocate their office. It would be great to be able to export the polygons so that they could be used in presentations and/or layered to get multiple ranges of travel time to list two ideas.

In order to add your city, the local transport provider needs to publish its public transport data in the GTFS format.

Please write your public transport agency and ask them to provide developers with GTFS data for free and under fair conditions. Point out the benefits they have when developers build cool applications like Mapnificent based on this data.
Please report progress and post any relevant links here. Thanks.

I had a brief discussion on Twitter about STIB’s data for Brussels. It is available for free, but unfortunately under conditions that are not acceptable to me: http://www.stib.be/data-sharing.html?l=en
The general conditions have some ridiculous paragraphs as I mentioned on Twitter before (https://twitter.com/#!/mapnificent/status/7208275082739712)
The conditions I have a problem with are:
- § 4.3 no modifications to the data set. Mapnificent transforms the data to be able to work the way it does, there is no other way. This paragraph may or may not apply, but I’m rather on the safe side and wait for the agency to give permission (like I did for San Diego and Los Angeles).
– § 4.5: Sharing usage statistics twice a year. I don’t mind sharing statistics on a voluntary basis, but I don’t want to commit myself to a report twice a year. If I forget, I violate the conditions and might get sued or whatnot.
– § 4.6: Displaying the STIB logo and slogan. I gladly link to every data provider and also put up some legal text if required, but if an agency wants to see their logo/branding on Mapnificent, they can pay me for it. Also STIB’s logo is pretty ugly in my opinion and wouldn’t fit well into the page.

To sum it up: The conditions are ridiculous and I have read a lot of license agreements for Mapnificent.
I’m sorry, but I refuse to use STIBs data under their terms.
I would set a bad example as a developer, if I agreed to this license, because open data licenses need to go in the exact opposite direction. STIB needs to understand that as a developer I’m doing them a favor if I develop apps using their data and that’s not what is expressed in the terms.

I had a brief discussion on Twitter about STIB’s data for Brussels. It is available for free, but unfortunately under conditions that are not acceptable to me: http://www.stib.be/data-sharing.html?l=en
The general conditions have some ridiculous paragraphs as I mentioned on Twitter before (https://twitter.com/#!/mapnificent/status/7208275082739712)
The conditions I have a problem with are:
- § 4.3 no modifications to the data set. Mapnificent transforms the data to be able to work the way it does, there is no other way. This paragraph may or may not apply, but I’m rather on the safe side and wait for the agency to give permission (like I did for San Diego and Los Angeles).
– § 4.5: Sharing usage statistics twice a year. I don’t mind sharing statistics on a voluntary basis, but I don’t want to commit myself to a report twice a year. If I forget, I violate the conditions and might…

In Stockholm you can easily get far in 30 minutes, almost in any direction. Or at least that's what we think. We want to be able to compare this pretty popular city with other cities with a subway and buses. Thank you.

Even though MARTA has released data to Google Transit, it has not made data available to the public as far as I know.
If you can find GTFS data for download for Atlanta, let me know. Otherwise contact MARTA and ask them to publish the data they give to Google: http://www.itsmarta.com/contact-us.aspx

I just sent an enquiry to Big Blue Bus about their GTFS data (which seems to be only available to Google at the moment).
If you want to weigh in, please use their contact form to ask them to publish their GTFS data: http://www.bigbluebus.com/contactus/index.asp

If there are other agencies I should include, please mention them in the comments.